Hypothermia is defined as an abnormally low body temperature, specifically dropping below the normal feline range of approximately 100°F to 102.5°F (37.8°C to 39.2°C). In the Chronic Kidney Disease (CKD) patient, this is often a grave indicator associated with the final stages of the disease, often referred to as "uremic hypothermia."
As the kidneys fail completely, the buildup of toxins (uremia) depresses the central nervous system, including the hypothalamus, which acts as the body's internal thermostat. Furthermore, the significant loss of muscle mass (sarcopenia) deprives the cat of the metabolic machinery needed to generate body heat. Owners often notice the cat feels cold to the touch, particularly the ears and paw pads. The cat may become unresponsive, lethargic, and seek out heat sources aggressively until they are too weak to move. Management involves gentle external warming (using heating pads or warm blankets) and addressing the underlying uremic crisis with warmed intravenous fluids. However, persistent hypothermia despite treatment is widely regarded by veterinarians as a poor prognostic indicator.
Disclaimer: This content is for educational purposes only and does not constitute veterinary medical advice. Always consult with your primary care veterinarian or a veterinary internal medicine specialist regarding your cat’s specific condition.